Who is left out on the NFL's free agent market?

have just $606,858 available under the salary cap if they hope to, as they seem to do every year, acquire a key veteran before the start of this season. Of course, they could potentially free up more wiggle room by negotiating a long-term extension with running back

Barring a change in these next two weeks, though, the Ravens will hit the practice fields in Owings Mills for camp and see what they have at a few uncertain positions. They may decide they don’t need a veteran back to spell Rice because

Advertisement

Bernard Pierce

Advertisement

,

Anthony Allen

or maybe even

Advertisement

Damien Berry

Advertisement

can help carry the load. They may maintain their confidence in their young wide receivers. And they may feel comfortable with their depth at free safety behind

Ed Reed

and also with their young players at outside linebacker --

Advertisement

Paul Kruger

Advertisement

,

Courtney Upshaw

,

Sergio Kindle

, etc. -- who are tasked with pressuring the quarterback with

Terrell Suggs

sidelined.

But knowing the Ravens, they are always willing to upgrade with their roster in the late stages of the preseason (see the signing of McKinnie last year and the recent trades for

Josh Wilson

and

Lee Evans

). And if they create cap flexibility beyond that $606,858 figure (per the

NFL

’s official website), there are some intriguing free agents who remain unspoken for. Alex Marvez of FOX Sports

Putting my speculation hat on, here are four players from Marvez’s list who might be a fit in Baltimore if the Ravens feel like tinkering.

Andre Carter, defensive end:

Carter recorded 10 sacks for the

New England Patriots

last season before a quadriceps injury ended his season. He has been linked to the Patriots again this offseason, but he remains unsigned. If the Ravens feel they need another edge rusher to help overcome the loss of Suggs, maybe they will consider giving Carter’s agent a phone call.

Matt Roth

, who has 23.5 career sacks, is also a free agent of note.

Braylon Edwards, wide receiver:

If Ravens coach

John Harbaugh

wants a scouting report on Edwards, he can reach out to his brother, Jim. Edwards played nine games for

Jim Harbaugh

’s

San Francisco 49ers

in 2011, but made just 15 catches for 181 yards. If he can still run -- and that's a big if -- his size might help out team’s downfield passing attack. But that’s only if the Ravens lose confidence in

LaQuan Williams

and

Tandon Doss

.

Ryan Grant, running back:

The Ravens believe that one of their young backs can replace

Ricky Williams

as the backup to Rice. Anthony Allen is the frontrunner heading into training camp, but